179,563 research outputs found
Winkelmann, John, March 28, 2011 [Interview]
No full textJohn R. Winkelmann was interviewed on March 28, 2011 by Michael Walmer about his childhood, his collegiate years, the two years he was drafted into the army, and coming to Gettysburg. He discussed his impressions of Carl Arnold Hanson and Charles E. Glassick as well as changes in the biology department during his time here.Winkelmann, Helen J.; Hanson, Carl Arnold; Glassick, Charles E.Carl Arnold Hanson Years; Charles E. Glassick Year
Winkelmann, Helen, April 1, 2011 [Interview]
No full textHelen J. Winkelmann was interviewed on April 1, 2011 by Mack Johnson about her childhood, a trip around Europe that involved visiting family in Czechoslovakia, teaching at Gettysburg with her husband, and her memories of Carl Arnold Hanson. She discussed memorable students, traveling abroad, and being a long-term faculty member while not having a PhD.Winkelmann, John R.; Hanson, Carl Arnold; Hanson, Jean; Hartman, David W.; Barnes, Betty; Barnes, Robert D.; Seibert, Sara MarianCarl Arnold Hanson Years; Charles E. Glassick Year
Noun class systems in Gur languages /.
No full textPart of the results of a joint project carried out since 1996 by the University of Bayreuth in collaboration with the Humboldt University of Berlin.Includes bibliographical references.1. Southwestern Gur languages (without Gurunsi) / Gudrun Miehe, Kerstin Winkelmann (eds.)2. North Central Gur Languages / Gudrun Miehe, Brigitte Reineke, Kerstin Winkelmann (eds.
Invariants and automorphisms for slice regular functions
No full textLet A be one of the following Clifford algebras: the quaternions or the Clifford algebra R_3.
For the algebra A, the automorphism group Aut(A) and its invariants are well known. In this paper, we will describe the invariants of the automorphism group of the algebra of slice regular functions over A.Let A be one of the following Clifford algebras: R-2 congruent to H or R-3. For the algebra A, the automorphism group Aut(A) and its invariants are well known. In this paper, we will describe the invariants of the automorphism group of the algebra of slice regular functions over A
Diffraction of backscattered electrons at crystal surfaces
No full textElectron backscatter diffraction (EBSD) has developed into a valuable tool for the analysis of materials in the scanning electron microscope (SEM) [1]. Pronounced improvements in applications of the EBSD method can be expected if it is possible to gain access to a quantitative description of not only the total number of backscattered electrons, but also to the fine-scale angular variations observed as diffraction patterns of these electrons. A complete simulation of the observed intensities, however, is only possible by applying electron diffraction theories that can properly include the multiple (dynamical) scattering of keV electrons in crystals [2,3].
I will discuss the application of many-beam dynamical theory to the simulation of experimental diffraction patterns of backscattered electrons. By energy-resolved measurements, the correlation between the energy loss of the scattered electrons and their diffraction effects can be investigated. First experimental results of corresponding angle-resolved reflection electron energy loss measurements are presented [4]. It is shown that under certain conditions, inelastically backscattered electrons can show more pronounced diffraction effects than the elastic electrons.
1. A.J. Schwartz, M. Kumar, B.L. Adams, D. P. Field (Eds.), Electron Backscatter Diffraction in Materials Science, 2nd edition, Springer, Berlin, 2009
2. A. Winkelmann, C. Trager-Cowan, F. Sweeney, A. P. Day, P. Parbrook, Ultramicroscopy 107, 414 (2007)
3. A. Winkelmann, Ultramicroscopy 108, 1546 (2008)
4. M. R. Went, A. Winkelmann, M. Vos, Ultramicroscopy 109, 1211 (2009
On a Runge theorem over
No full textIn this paper we investigate a topological characterization of the Runge theorem in the
Clifford algebra R_3 via the description of the homology groups of axially symmetric open subsets of the quadratic cone in R_3
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Chi conosce il nome di Winkelmann, come ignorare certamente non può che in Trieste riponsano le ceneri di questo Archeologo insignare
No full textCHI CONOSCE IL NOME DI WINKELMANN, COME IGNORARE CERTAMENTE NON PUÒ CHE IN TRIESTE RIPONSANO LE CENERI DI QUESTO ARCHEOLOGO INSIGNARE
Chi conosce il nome di Winkelmann, come ignorare certamente non può che in Trieste riponsano le ceneri di questo Archeologo insignare ([1]r
Predicting Qualification Thresholds in UEFA's incomplete round-robin tournaments via a Dixon and Coles Model
No full textWinkelmann D, Michels R, Deutscher C. Predicting Qualification Thresholds in UEFA's incomplete round-robin tournaments via a Dixon and Coles Model. arXiv:2508.20075. 2025
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
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